JPS62129366A - Paint for aluminum fin - Google Patents
Paint for aluminum finInfo
- Publication number
- JPS62129366A JPS62129366A JP26752585A JP26752585A JPS62129366A JP S62129366 A JPS62129366 A JP S62129366A JP 26752585 A JP26752585 A JP 26752585A JP 26752585 A JP26752585 A JP 26752585A JP S62129366 A JPS62129366 A JP S62129366A
- Authority
- JP
- Japan
- Prior art keywords
- water
- parts
- weight
- resin
- paint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は空調機用熱交換器のアルミニウムフィン表面に
親水性、防食性を付与するための塗料に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a coating material for imparting hydrophilicity and anticorrosion properties to the surface of aluminum fins of a heat exchanger for an air conditioner.
（従来の技術）
熱交換器のアルミニウムフィンはアルミニウムフィン材
表面をベーマイト処理等の化成処理を施すか、塗装によ
り親水性を付与している。これは、アルミニウムの防食
とともに空ｔＪ！ｉｔ機の運転中に発生する凝縮水の水
滴による通風抵抗の減少を防止し、熱交換効率を低下さ
せないようにするためである。塗装による親水化処理は
フィンに加工した後、施されるのが一般的である。例え
ば特開昭５５−１６４２６４号公報Ｇこは水性塗料用樹
脂、界面活性剤および合成シリカを配合した塗料が開示
されている。一方、化成処理はフィンに加工する前に施
されるが、生産性に劣るという欠点を有しているので、
これに代えて親水性の塗膜をプレコートすることが最も
好ましいと考えられるようになった。(Prior Art) Aluminum fins of heat exchangers are made hydrophilic by subjecting the surface of the aluminum fin material to a chemical conversion treatment such as boehmite treatment or by painting. This, along with the corrosion protection of aluminum, is effective for empty tJ! This is to prevent a decrease in ventilation resistance due to droplets of condensed water generated during operation of the IT machine, and to prevent a decrease in heat exchange efficiency. Hydrophilic treatment by painting is generally applied after processing the fins. For example, JP-A-55-164264 discloses a paint containing a water-based paint resin, a surfactant, and synthetic silica. On the other hand, chemical conversion treatment is applied before processing into fins, but it has the disadvantage of poor productivity.
Instead, it has come to be considered most preferable to precoat with a hydrophilic coating.
しかしながら、従来のアルミニウムフィン用塗料は合成
シリカを配合しているので、フィンを成形加工する際、
加工工具の摩耗が激しく工具の寿命が短くなるという問
題点を有していた。However, since conventional paints for aluminum fins contain synthetic silica, when forming the fins,
There was a problem in that the machining tools were subject to severe wear and the life of the tools was shortened.
（発明が解決しようとする問題点）
本発明は上記現状に鑑みてなされたものであり、その目
的とするところは１合成シリカに代わる有機親水性付与
材を配合した親水性、防食性、加工性等に優れたアルミ
ニウムフィン用塗料を１是供することにある。(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned current situation, and its objectives are: (1) to provide hydrophilic, anticorrosive, and processable materials containing an organic hydrophilicity-imparting material in place of synthetic silica; Our objective is to provide a paint for aluminum fins with excellent properties.
（発明を解決するための手段）
すなわち９本発明は、水１ギ塗料用樹脂、吸水性樹脂粉
末、および界面活性剤を含むことを特徴とするアルミニ
ウムフィン用塗料である。(Means for Solving the Invention) That is, the present invention is a paint for aluminum fins characterized by containing a water-based paint resin, a water-absorbing resin powder, and a surfactant.
本発明における水性塗料用樹脂としては１例えば。Examples of the resin for water-based paints in the present invention include 1.
アクリル系、アルキド系、ポリエステル系、エボキシ系
、アクリルアルキド系等の水溶性樹脂、あるいはそれら
と水溶性アミン樹脂とからなる混合成分系樹脂が挙げら
れる。Examples include water-soluble resins such as acrylic, alkyd, polyester, epoxy, and acrylic alkyd resins, and mixed component resins comprising these and water-soluble amine resins.
本発明における吸水性樹脂は、水に不溶性であって、少
なくとも自重以上の水を吸収、保持できるものであり１
例えば、カルボキシメチルセルロース系、デンプン−ポ
リアクリロニトリル加水分解物系、デンプン−ポリアク
リル酸塩架橋物、酢酸ビニル−アクリル酸メチル共重合
体ケン化物系、ポリアクリロニトリル加水分解物系、ア
クリル酸−ビニルアルコール共重合体系、アクリル酸ソ
ーダ重合体系、アクリル酸ソーダーアクリル酸アミド重
合体系等の吸水性樹脂の１種又は２種以上の混合系が挙
げられる。The water-absorbing resin in the present invention is insoluble in water and can absorb and retain at least more than its own weight of water.
For example, carboxymethyl cellulose, starch-polyacrylonitrile hydrolyzate, starch-polyacrylate crosslinked product, saponified vinyl acetate-methyl acrylate copolymer, polyacrylonitrile hydrolyzate, acrylic acid-vinyl alcohol copolymer, etc. Examples include one or a mixture of two or more water absorbing resins such as a polymer system, a sodium acrylate polymer system, a sodium acrylate acrylic acid amide polymer system, and the like.
この吸水性樹脂は、水性塗料樹脂固形分１００重合部に
対して０．５〜１００重量部になるように用いることが
好ましく、０，５〜５０重量部になるように用いること
が特に好ましい。０．５重量未満では塗膜に親水性を付
与することが困難であり、１００重量部を越える場合に
は、塗膜の造膜性が著しく劣化し、実用に供し得ない。The water-absorbing resin is preferably used in an amount of 0.5 to 100 parts by weight, particularly preferably 0.5 to 50 parts by weight, based on 100 polymerized parts of the solid content of the water-based paint resin. If it is less than 0.5 parts by weight, it is difficult to impart hydrophilicity to the coating film, and if it exceeds 100 parts by weight, the film-forming properties of the coating film are significantly deteriorated and cannot be put to practical use.
また吸水性樹脂粉末の粒径は、塗膜の平滑性および均一
性を考慮すれば、平均３０μ以下であることが。In addition, the average particle size of the water-absorbing resin powder should be 30 μm or less in consideration of the smoothness and uniformity of the coating film.
特に望ましいが、これに限定されるものではない。This is particularly desirable, but is not limited thereto.
界面活性剤としては、非イオン系、陰・イオン系１両性
系などがあげられる。この界面活性剤は水性塗料樹脂を
合成する際に官能基の一部として用いられても良い。こ
れらの界面活性剤のうちで低起泡性の界面活性剤１例え
ば、ポリオキシエチレンノニルフェニルエーテル、ポリ
オキシエチレンオクチルフェニルエーテル、ポリオキシ
エチレン・オキシプロピレンブロソクボリマー、ポリオ
キシエチレングリコール等は熱交換器の作動時の通風に
よる泡立ち現象を抑えるため好ましい。界面活性剤は水
性塗料用樹脂固形分１００重量部に対して、０．５〜５
０重量部となるように用いることが好ましい。０．５重
量部未満では塗膜に十分な親水性を付与させることが困
難であり、また、５０重量部を越える場合には耐蝕性が
十分に得られない。Examples of the surfactant include nonionic, anionic/ionic, and amphoteric surfactants. This surfactant may be used as part of the functional group when synthesizing the water-based paint resin. Among these surfactants, low-foaming surfactants 1, such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene/oxypropylene broth polymer, polyoxyethylene glycol, etc. This is preferable because it suppresses the bubbling phenomenon caused by ventilation during operation of the exchanger. The surfactant is 0.5 to 5 parts by weight per 100 parts by weight of the resin solid content for water-based paints.
It is preferable to use it in an amount of 0 parts by weight. If it is less than 0.5 parts by weight, it is difficult to impart sufficient hydrophilicity to the coating film, and if it exceeds 50 parts by weight, sufficient corrosion resistance cannot be obtained.
本発明のアルミニウムフィン用塗料を製造するには水性
塗料用樹脂、吸水性樹脂粉末、溶剤（イソプロピルアル
コール、ブチルセロソルブ、水）及び必要に応じて染料
、顔料を加えた後に通常の塗料用樹脂で分散する。To produce the paint for aluminum fins of the present invention, water-based paint resin, water-absorbing resin powder, solvent (isopropyl alcohol, butyl cellosolve, water), and optionally dyes and pigments are added, and then dispersed with regular paint resin. do.
本発明のアルミニウムフィン用塗料はアルミニウムフィ
ン材の塗装するプレコート塗料として用いることができ
る他１．加工されたフィンに塗装するポストコート塗料
としても使用することができる。The paint for aluminum fins of the present invention can be used as a pre-coat paint for coating aluminum fin materials.1. It can also be used as a post-coat paint on processed fins.
塗装厚みとしては０．５〜２０μとなるように塗装し、
１２０〜１２５’Ｃ，１０秒〜３０分間焼きつけること
によって塗膜を形成することができる。Paint to a thickness of 0.5 to 20μ,
A coating film can be formed by baking at 120 to 125'C for 10 seconds to 30 minutes.
（実施例）
実施例 １
水分散性アクリル樹脂（日触アロー化学株式会社商品名
アクリセッｌ−３１２Ｅ）３０重量部、吸水性樹脂（住
友化学株式会社商品名スミカゲル５Ｐ５２０）２重量部
、界面活性剤（花王株式会社エマルゲン９０９）１０重
量部、脱イオン水４６．４部、ブチルセロソルブ１１．
６重量部を混合し、ボットミルに入れて、１２時間分散
させた後に取り出してバーコーター１１ｈＩＯによりア
ルミニウムフィン用アルミニウム板に塗装した。(Example) Example 1 30 parts by weight of water-dispersible acrylic resin (trade name: Acrysel 1-312E, manufactured by Nissaku Arrow Chemical Co., Ltd.), 2 parts by weight of water-absorbing resin (trade name: Sumikagel 5P520, manufactured by Sumitomo Chemical Co., Ltd.), surfactant (Kao Corporation Emulgen 909) 10 parts by weight, deionized water 46.4 parts, butyl cellosolve 11.
6 parts by weight were mixed, put into a bot mill, dispersed for 12 hours, taken out, and coated on an aluminum plate for an aluminum fin using a bar coater 11hIO.
これを２３０℃の電気乾燥炉で４０秒焼付して、約５μ
の塗膜厚の塗装されたアルミニウムフィン材を得た。This was baked for 40 seconds in an electric drying oven at 230°C to produce approximately 5μ
A coated aluminum fin material with a coating thickness of .
実施例 ２
市販の水溶性アクリル樹脂（日立化成株式会社商品名ヒ
タロイド７１１３）３８．３重量部、水溶性メラミン樹
脂（日立（ヒ成株式会社商品名メラン２４２）１１゜８
重量部、吸水性樹脂（スミカゲルＦ−０３）５．０重量
部、界面活性剤（ライオン株式会社、リポノックスＮＣ
Ｒ）５．０重量部、脱イオン水３２．０重量部、ブチロ
セロソルブ７．０重量部を混合し、ボットミルに入れて
、１２時間分散させた後に、実施例１と同様の条件げ塗
布、硬化させ、約３μの塗膜厚の塗装されたアルミニウ
ムフィン材を得た。Example 2 Commercially available water-soluble acrylic resin (Hitachi Chemical Co., Ltd. trade name: Hitaloid 7113) 38.3 parts by weight, water-soluble melamine resin (Hitachi (Hisei Co., Ltd. trade name: Melan 242) 11°8
Parts by weight, water absorbent resin (Sumikagel F-03) 5.0 parts by weight, surfactant (Lion Corporation, Liponox NC
R) 5.0 parts by weight, 32.0 parts by weight of deionized water, and 7.0 parts by weight of butyrocellosolve were mixed, placed in a bot mill, dispersed for 12 hours, and then coated under the same conditions as in Example 1. After curing, a coated aluminum fin material with a coating thickness of about 3 μm was obtained.
実施例 ３
水分散性アルキド樹脂（日立化成株式会社商品名フタル
キッドＷ７５０）３０．２重量部、水溶性メラミン樹脂
（住友化学株式会社商品名スミマールＭ５０Ｗ）４．８
重量部、吸水性樹脂（スミカゲルＮＰ １０２０）１０
．０重量部、界面活性剤（第一工業製薬株式会社商品名
ノイゲンＥＴ１３５）２．０重量部、脱イオン水４２．
４重量部、ブチルセロソルブ１０．６重量部を混合して
ボットミルに入れ、１２時間分散した後に取り出し、実
施例１と同様の条件で塗布硬化させ約３μの塗膜厚の塗
装されたアルミニウムフィン材を得た。Example 3 30.2 parts by weight of water-dispersible alkyd resin (Hitachi Chemical Co., Ltd. trade name: Phthalkyd W750), 4.8 parts by weight of water-soluble melamine resin (Sumitomo Chemical Co., Ltd. trade name: Sumimaru M50W)
Parts by weight, water absorbent resin (Sumikagel NP 1020) 10
．． 0 parts by weight, 2.0 parts by weight of surfactant (trade name Noogen ET135, Daiichi Kogyo Seiyaku Co., Ltd.), 42 parts by weight of deionized water.
4 parts by weight and 10.6 parts by weight of butyl cellosolve were mixed, placed in a bot mill, dispersed for 12 hours, taken out, and coated and cured under the same conditions as in Example 1 to form a coated aluminum fin material with a coating thickness of approximately 3μ. Obtained.
比較例 １
水分散性アクリル樹脂（日触アロー株式会社商品名アク
リセット３１２Ｅ）４０．ｆｆｉ量部歪部成シリカ（水
沢化学工業株式会社ミズカジルｐ−５２６）６．５重量
部、界面活性剤（花王株式会社商品名エマルゲン９０９
）１２．９重量部、塩イオン水３２．５ Ｍ歪部、ブチ
ルセロソルブ８．１重量部を混合し、高速ディシルバー
により分散した後に、実施例１と同様の条件で塗布、硬
化させ、約５μの塗膜厚の塗装されたアルミニウムフィ
ン材を得た。Comparative Example 1 Water-dispersible acrylic resin (trade name Acryset 312E, Nissaku Arrow Co., Ltd.) 40. ffi parts: strained silica (Mizusawa Chemical Co., Ltd. Mizukasil p-526) 6.5 parts by weight, surfactant (Kao Corporation trade name Emulgen 909)
), 32.5 M strained salt ion water, and 8.1 parts by weight of butyl cellosolve were mixed and dispersed by high-speed disilver, and then coated and cured under the same conditions as in Example 1 to form a powder of approximately 5 μm. A coated aluminum fin material with a coating thickness of .
比較例 ２
水溶性アクリル樹脂（日立化成株式会社商品名ヒタロイ
ド７１１３）３１．７重量部、水溶性メラミン樹脂（日
立化成株式会社商品名メラン２４２）９．８重量部、界
面活性剤（ノイゲンＥＡ１４０）６．０重量部、脱イオ
ン水４３．０重量部、ブチルセロソルブ８．６重量部、
イソプロピルアルコール０．９重量部を混合し、高速デ
ィシルバーにより約１５分間層合、溶解した後に。Comparative Example 2 31.7 parts by weight of water-soluble acrylic resin (Hitachi Chemical Co., Ltd. trade name Hitaloid 7113), 9.8 parts by weight of water-soluble melamine resin (Hitachi Chemical Co., Ltd. trade name Melan 242), surfactant (Noigen EA140) 6.0 parts by weight, 43.0 parts by weight of deionized water, 8.6 parts by weight of butyl cellosolve,
After mixing 0.9 parts by weight of isopropyl alcohol and layering and dissolving for about 15 minutes using a high-speed desilver.
実施例１と同様の条件で塗布、硬化させ、約３μの塗膜
厚の塗装されたアルミニウムフィン材を得た。It was applied and cured under the same conditions as in Example 1 to obtain a coated aluminum fin material with a coating thickness of about 3 μm.
各実施例および比較例で得られた塗装されたアルミニウ
ムフィン材について親水性試験、耐蝕性試験、成形性試
験、金型摩耗性試験を行い、その評価を表１に示した。The coated aluminum fin materials obtained in each example and comparative example were subjected to a hydrophilicity test, a corrosion resistance test, a moldability test, and a mold abrasion test, and the evaluations are shown in Table 1.
ここで親水性は、アルミニウムフィン材の表面を観察す
ることにより４段階評価（◎・・・非常に良い、○・・
・良い、△・・・やや良い、×・・・悪い）を行った。Here, hydrophilicity is evaluated in four stages (◎...very good, ○...) by observing the surface of the aluminum fin material.
・Good, △...fairly good, ×...poor).
親水性の持続は水道水による５日間の流水浸漬後の水濡
れ性を観察評価した。耐蝕性は塩水噴霧試験１０日後に
おけるアルミニウムフィン材の表面を観察し、上記と同
様の基準で４段階評価を行った、成形性はアルミニウム
フィン材にバーニング加工を施し、その屈曲部にクラッ
クを生じたか否かで判定し、上記と同様の基準で４段階
評価を行った。金型摩耗性はアルミニウムフィン材を金
型を用いて一定形状に成形した際、所定の枚数を形成し
た時の金型の摩耗状態を観察し、上記と同様の評価を行
った。Sustainability of hydrophilicity was evaluated by observing water wettability after immersion in running tap water for 5 days. Corrosion resistance was evaluated by observing the surface of the aluminum fin material 10 days after the salt spray test and performing a four-level evaluation based on the same criteria as above.Formability was determined by performing a burning process on the aluminum fin material and cracking occurred at the bent part. A four-level evaluation was performed using the same criteria as above. The mold abrasion resistance was evaluated in the same manner as above by observing the state of wear of the mold when aluminum fin material was molded into a certain shape using a mold, and a predetermined number of fins were formed.
（発明の効果）
本発明のアルミニウムフィン用塗料は、吸水性樹脂の粉
末が塗膜表面に微細な凹凸を形成するため、この物理的
な作用によって水濡性に寄与し、吸水性樹脂粉末の表面
親水性および界面活性剤の作用によって水滴ができない
塗膜表面を形成することができる。また。(Effects of the Invention) In the paint for aluminum fins of the present invention, the water-absorbing resin powder forms fine irregularities on the surface of the coating film, so this physical action contributes to water wettability, and the water-absorbing resin powder Due to surface hydrophilicity and the action of surfactants, a coating surface that does not form water droplets can be formed. Also.
親水性の付与材として合成シリカのような無機物を配合
していないので、アルミニウムフィン材のプレコート塗
料として使用しても、フィンに加工する際、金型が摩耗
することなく経済的である。Since it does not contain an inorganic substance such as synthetic silica as a hydrophilic agent, it is economical to use as a pre-coat paint for aluminum fin materials because the mold will not wear out when processed into fins.
Claims (1)
剤を含むことを特徴とするアルミニウムフィン用塗料。1. A paint for aluminum fins comprising a water-based paint resin, a water-absorbing resin powder, and a surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26752585A JPS62129366A (en) | 1985-11-29 | 1985-11-29 | Paint for aluminum fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26752585A JPS62129366A (en) | 1985-11-29 | 1985-11-29 | Paint for aluminum fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62129366A true JPS62129366A (en) | 1987-06-11 |
Family
ID=17446038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26752585A Pending JPS62129366A (en) | 1985-11-29 | 1985-11-29 | Paint for aluminum fin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62129366A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164770A (en) * | 1986-01-16 | 1987-07-21 | Toyo Alum Kk | Resin composition |
| US5585186A (en) * | 1994-12-12 | 1996-12-17 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective, and anti-fogging properties |
| US5813452A (en) * | 1994-04-01 | 1998-09-29 | Kansai Paint Co., Ltd. | Coating composition for hydrophilization and method for hydrophilization |
| US5846650A (en) * | 1996-05-10 | 1998-12-08 | Minnesota Mining And Manufacturing Company | Anti-reflective, abrasion resistant, anti-fogging coated articles and methods |
| US5873931A (en) * | 1992-10-06 | 1999-02-23 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| JPH11201674A (en) * | 1998-01-14 | 1999-07-30 | Denki Kagaku Kogyo Kk | Material of fin for heat exchanger and surface treating agent therefor |
| US6040053A (en) * | 1996-07-19 | 2000-03-21 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| CN100363421C (en) * | 2005-02-05 | 2008-01-23 | 广州慧谷化学有限公司 | Thermo-setting acrylic-acid emulsion, its preparing method and paint containing same |
| JP2012078081A (en) * | 2010-09-08 | 2012-04-19 | Kobe Steel Ltd | Aluminum-made fin material |
-
1985
- 1985-11-29 JP JP26752585A patent/JPS62129366A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62164770A (en) * | 1986-01-16 | 1987-07-21 | Toyo Alum Kk | Resin composition |
| US5873931A (en) * | 1992-10-06 | 1999-02-23 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| US5997621A (en) * | 1992-10-06 | 1999-12-07 | Minnesota Mining And Manufacturing Co. | Coating composition having anti-reflective and anti-fogging properties |
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